GB2535013A

GB2535013A - Ventilation system with measuring system

Info

Publication number: GB2535013A
Application number: GB1600620.7A
Authority: GB
Inventors: Louis Renson Luc
Original assignee: Vero Duco NV
Current assignee: Vero Duco NV
Priority date: 2015-01-13
Filing date: 2016-01-13
Publication date: 2016-08-10
Anticipated expiration: 2036-01-13
Also published as: BE1023420A1; GB2535013B; NL2014124B1; NL2014124A; BE1023420B1; GB201600620D0

Abstract

A building (1, figure 1) with at least one room (2, 2) contains a ventilation system, ducts (3), and a central housing 6 having at least one nozzle 5. The housing comprises an active ventilator (fan) 7, a flow regulation means and a carrier 10. The carrier contains at least one measuring system (9, figure 5) for measuring the property of the air, which may include CO2 and humidity. The carrier is connected to the at least one nozzle and the housing is provided with a receiving space 11 delimited by a carrying wall 16, 19 having at least one carrying edge 18. The carrier is provided with a supporting element that maybe a hook 20 which is positioned over the carrying edge so that it can be accommodated or removed by transverse displacement from the receiving space. Preferably the carrier is located at the outlet of the nozzle within the central housing.

Description

Ventilation system with measuring system The invention relates to a ventilation system, comprising a central housing having at least one nozzle, an active ventilator in the housing and a flow-regulating means for regulating an air flow through the nozzle, which flow-regulating means comprises at least one measuring system for measuring a property of the air, wherein, inside the central housing, a carrier is connected to at least one nozzle said carrier comprising at least the measuring system, which housing is provided with a receiving space positioned in the path of the air flow for the carrier, in which receiving space the carrier can be accommodated or, respectively, from which receiving space the carrier can be removed, by displacement transversely with respect to said path of the air flow. A ventilation system of this type is known. It may be used, for example, to centrally extract air from the different rooms of a building. The degree of extraction can be set separately for each room, depending on the type of use of the rooms and the number of people located therein. For this purpose, a flow-rate regulator which is located in the relevant duct connecting said room to the ventilator can be controlled, for example, in the desired manner by the regulating system.

Parameters which may be involved are the CO2 content, atmospheric humidity, temperature and the like. If for example, a large number of people are located in a certain room, the CO2 content may reach undesired levels. The increase in the CO2 content is detected by the relevant sensor of the measuring system in such a way that the software of the regulating system can adjust the flow-rate regulator to a higher flow rate. According to another example, the humidity of the air extracted from a wet room can cause the flow rate to increase. The flow rate can be reduced as soon as a decrease in the relevant parameter is detected.

Although extracting air from the relevant rooms is mentioned here by way of example, it is also conceivable to supply air to the relevant rooms via the flow-rate regulators using a ventilation installation of this type. It is also possible to provide dual ducts, by means of which, on the one hand, air can be supplied to a certain room and, on the other hand, air can be extracted from said room under the influence of the ventilator.

Such a ventilation system is known from NL-C-1038209, in which pipe-shaped regulating units are placed onto the nozzles on the outside of the central housing, which regulating units accommodate a flap having a drive and a measuring unit. Connection cables which lead from the relevant regulating units up to and into the central housing ensure a connection to the central regulating system located in the housing.

The drawback of this known ventilation system is that it is inconvenient to subsequently install or replace a regulating unit and the measuring unit. For this purpose, it is necessary to detach and optionally shorten the duct connected to the relevant nozzle In order to save space, the ventilation systems are often arranged in a limited space, which can cause problems when carrying out this work. A further drawback is that the connections, in particular the cables between the flow-rate regulator and the regulating system, are situated outside the central housing, which increases the space requirement and vulnerability of the ventilation system.

It is therefore an object of the invention to provide a ventilation system of the above-described type which does not have these drawbacks and which is easier and more reliable to handle during installation and use. This object is achieved in that the receiving space is delimited by a carrying wall having at least one carrying edge and in that the carrier is provided with a supporting element which interacts with the carrying wall. Although the carrier can be supported in a number of different ways with respect to the carrying wall, such as by a screwed connection, by bonding or the like, a carrier element, preferably in the form of a hook which is hooked over the carrying edge of the carrying wall, is preferred.

The unit or carrier with the measuring system is not located on the nozzle on the outside here, but is pushed or placed into the housing itself This means that the unit can be installed or replaced without it being necessary to detach or adapt the connection of the duct to the relevant nozzle.

An important advantage is furthermore that the external dimensions of the ventilation system and the ducts connected thereto are not dependent on whether or not the measuring system is present. As a result, the space requirement is properly determined and limited. The connections and cables for the various functions of the measuring system are also accommodated entirely within the central housing, which has a positive effect on the reliability. The ventilation system according to the invention also has the advantage that its exterior has a better appearance and is less susceptible to soiling, since the cluttered impression caused by the various cables has been overcome by concealing said cables from view under the cover.

The carrier is preferably located at the outlet of the nozzle in the central housing at a distance from the free end of the nozzle. Unlike in the known ventilation system, the nozzles remain free of additional elements, so that the relevant ducts can be clearly connected without the need to consider the measuring systems. The carrier with the measuring system is also well protected from external influences in the interior of the central housing, which benefits the service life and reliability.

The carrier can be provided with relatively small openings or leakage flow openings via which air from the duct can reach the relevant sensor. The flow-regulating means can comprise means for regulating a regulating system for regulating the air flow on the basis of a property of the air measured by the measuring system. Said regulating system can be located, for example, in the ducts connected to the housing of the ventilation system. Such a regulating system can optionally be located inside the housing.

The measuring system can comprise a sensor unit, for example, for measuring a property of the air, such as the CO2 content, the air humidity or the like, said sensor unit emitting a signal which is a measurement of said property and being connected to the regulating system. According to a simple embodiment, the sensor unit can comprise a sensor having integrated electronics for emitting a measurement signal, such as a sensor integrated on a printed circuit board.

As already mentioned, the carrier can be well protected in the interior of the central housing. In this connection, the central housing is preferably provided with a continuous peripheral wall with peripheral edges facing away from one another, between which the at least one nozzle is located, wherein, in that case, the carrying wall and optionally carrying edge is formed by one of the peripheral walls or peripheral edges, respectively. As an alternative, a separate carrying wall can be arranged within the peripheral wall, in which case the carrying edge of this separate carrying wall is parallel to one of the peripheral edges. The receiving space is then formed between the separate carrying wall and the peripheral wall. A cover can also be arranged on one of the peripheral edges, which cover covers the interior space of the central housing.

The various components of the ventilation system, in particular the ventilator, the carriers or measuring units and the flow-regulating means, can be arranged in their predetermined positions in the central housing in a simple manner. After the electrical connections between said components have been arranged, for example via a bus system which is known per se, the single unit can be hermetically sealed by placing the cover on the peripheral wall. The peripheral wall can, for example, be permanently sealed at the edge opposite the cover by means of an integrally formed base.

An intermediate wall is preferably located in the central housing between the two peripheral edges, it being possible for said intermediate wall to contain at least one mouth in which the carrier is accommodated, preferably by being pushed into the mouth. It is therefore possible for the carrier to be arranged in a stable manner in the housing. A cover can also be arranged on one of the peripheral edges, which cover covers the interior space of the central housing. The mouth which is associated with a receiving space, via which mouth the carrier can be pushed into the guide, as described above, preferably faces the peripheral edge on which the cover is located in such a way that the cover covers both the guide and a carrier optionally accommodated therein.

In order to fasten the carrier in a stable manner, said carrier can have a stop at a distance from the hook. In that case, the carrying wall can have a recess at a distance from the carrying edge in such a way that, when the hook is resting against the carrying edge, the stop is located in the recess in order to prevent the carrier from becoming detached from the carrying wall. By means of such a click-fit system, the carrier can be arranged and optionally also removed in a reliable manner.

The carrier can comprise a sensor housing in which a sensor, preferably an integrated circuit having a sensor, is accommodated. The sensor housing preferably has coupling means for coupling a further carrier having a sensor housing. It is thus possible to form a compact unit by means of which various properties of the air can be measured, such as the CO2 content and humidity. This option of coupling the sensor housings also has the advantage that it is possible to make various combinations of sensors in a simple manner, without it being necessary to create a printed circuit in each case containing the desired sensors and associated electronic components. A number of basic printed circuits can suffice, which can then be combined in the desired way by clicking the sensor housings to one another. To this end, in an embodiment, the sensor housing can be provided with coupling means for coupling a further carrier having a sensor housing.

In a further embodiment, the sensor housing comprises two sides facing away from one another, which sides are oriented transversely with respect to the nozzle, and a side oriented towards the nozzle wherein the side oriented towards the nozzle has smaller dimensions than the nozzle so that, in use, an air flow flows through the nozzle along the sides of the sensor housing facing away from one another.

In an embodiment, the sensor housing and the supporting element each have a longitudinal direction, wherein the longitudinal direction of the supporting element is oriented transversely with respect to the longitudinal direction of the sensor housing, so that the carrier has an L-shaped or a T-shaped plan view. The fact that the longitudinal directions of the sensor housing and the supporting element are transverse with respect to one another creates an L-shaped or a T-shaped plan view of the carrier.

The sensor housing and the supporting element preferably each have a longitudinal direction, wherein the longitudinal direction of the supporting element is parallel to the carrying edge, and the longitudinal direction of the sensor housing is oriented transversely with respect to the longitudinal direction of the supporting element.

It is of course possible for a plurality of nozzles to be provided, each with a respective guide for accommodating the carrier. The ventilation system can be operated in various different ways. According to a first option, the ventilator can be configured to suck in air via at least one nozzle and the central housing comprises a discharge for discharging the air which is sucked in via the at least one nozzle. According to a second option, the ventilator can be configured to emit air via at least one nozzle and the housing can comprise an input for supplying the air which is emitted via the at least one nozzle. The combination of supplying and discharging air is also possible.

The invention also relates to a carrier for a ventilation system as described above, comprising a sensor housing, a connecting element, such as a hook, connected to the sensor housing and at least one measuring system for measuring a property of air.

A stop can be located at a distance from the hook and on the open side of the hook, in order to stabilize the carrier with respect to a carrying wall. Coupling means can also be provided for coupling a further carrier. In particular, the carriers can be provided with identical coupling means, in such a way that the carriers themselves are identical, with the exception of the measuring system accommodated therein.

In an embodiment, the supporting element and the sensor housing are oriented in such a way with respect to one another that the carrier has an L-shaped or a T-shaped plan view. The L or T shape is preferably obtained due to the fact that the sensor housing and the supporting element each have a longitudinal direction, wherein the longitudinal direction of the supporting element is oriented transversely with respect to the longitudinal direction of the sensor housing. The fact that the longitudinal directions of the sensor housing and the supporting element are transverse with respect to one another creates an L-or a T-shaped plan view of the carrier.

In addition, the invention relates to a building which comprises at least one room, a ventilation system as described above, and ducts which each extend between the at least one room and a nozzle of the housing. In this case, the flow-regulating means can have a regulating system for regulating the air flow on the basis of a property of the air measured by the measuring system. This regulating system can, for example, be configured as a regulating flap which is located in a duct and/or in a valve.

The invention will be explained in more detail below with reference to an exemplary embodiment illustrated in the figures.

Figure 1 shows a diagrammatic view of an embodiment of the ventilation system according to the invention.

Figure 2 shows a variant of the housing of the ventilation system.

Figures 3 and 4 show two combined carriers.

Figure 5 shows a carrier in exploded view.

Figure 6 shows a side view of the housing.

The ventilation system illustrated in Figure 1 is located in a building, in particular a house 1 which contains a plurality of rooms 2, 2',.... The ventilation system can be configured to extract air from the rooms, to supply air to the rooms or to both supply and discharge air. In the latter case, two ducts are provided for each room. In the illustrated exemplary embodiment, each room 2, 2',... is provided with a single duct 3, 3',... which opens into the relevant room via a valve 4, 4',.... The ducts 3, 3', are all connected to a nozzle 5 5' ... of the central housing 6. Said central housing contains an active ventilator 7, in a manner known per se, for extracting air from the ducts, or for emitting air to the ducts. The air which is extracted from the rooms can be conducted to the outside via the discharge 8. The ducts 3 or the valves 4 can have a regulating system 33 which is connected to the flow-regulating means of the ventilation system, in order to influence the air flow. However, such regulating systems are not necessary. It is also possible to influence the air flow by changing the rotational speed of the active ventilator 7.

Figure 2 shows the ventilation system comprising a housing 6 with a slightly lifted cover 17. The housing 6 comprises four side walls 12 with two nozzles 5 or a nozzle 5 and the outlet 24. An intermediate wall 30 is located in the interior of the housing 6, on which intermediate wall 30 an active ventilator 7 is accommodated. The mouths 29 of the receiving spaces 11 are provided adjacent to the side walls 12 in the intermediate wall 30 in the interior of the housing 6. The carriers 10 are accommodated in the receiving spaces 11. The receiving space 11 adjoins the side wall 12. As a result, the air flow can be supplied or discharged along the carrier 10. One side of the carrier is oriented towards the nozzle and another side of the carrier 10 is oriented towards the interior of the housing 6. The carrier 10 also comprises two sides facing away from one another which are oriented transversely with respect to the nozzle 5. The air flow which is supplied or discharged will flow along these sides of the carrier 10 facing away from one another. The housing 6 also comprises a base part 15. The carrier 10 is provided with connection elements 14 for connecting the carrier 10 to a regulating system via cables 13 (see Figures 3-5).

The cover 17 is provided to be placed on the top edges 16 of the side walls 12. Said cover covers the interior of the housing 6, so that the active ventilator 7 and the carriers 10 are protected against influences from outside.

Figures 3-5 show an embodiment of a carrier 10 comprising a sensor housing 25 with supporting elements in the form of hooks 20 for supporting the carrier 10 on the carrying edge 18 of the carrying wall 19 (see Figure 2) which, together with the peripheral wall 16, delimits a receiving space 11. This carrying wall contains an opening 32 which is aligned with respect to the associated nozzle 5. The carrier has a stop 31 at a distance from the hook 20 in such a way that, when the hook is resting on the carrying edge 18, the stop 31 is clicked precisely into the opening 32 in the carrying wall 19, which opening 32 is aligned with respect to the associated nozzle 5 Figure 3 shows a reference coordinate system in order to indicate the orientation of the dimensional directions of the sensor housing and the supporting element with respect to one another. The longitudinal direction of the sensor housing 25 is oriented in the x direction and the longitudinal direction of the hook 20 is oriented in the y direction, and they are therefore transverse with respect to one another. The hook 20 is provided at a free end of the supporting element. To obtain a stable support of the carrier 10, the hook 20 extends in a longitudinal direction y. The longitudinal direction y of the hook is perpendicular to the longitudinal direction x of the sensor housing When the carrier 1 0 is placed in the receiving space 11, the longitudinal direction y of the hook is parallel to the carrying edge 18. De stop 31 is located at a distance from the hook 20 and from the sensor housing 25.

In the illustrated exemplary embodiment, the sensor housing 25 consists of two halves 22, 23 which are clicked onto one another and which enclose the measuring system 9, with leakage openings being provided for the entry of the air; the hook 20 is formed on the half 22. The halve 22 of the sensor housing 25 and the hook 20 are oriented with respect to each other such that a T-shaped plan view is obtained. The sensor housing also has male fastening means 26 and a female fastening means 27 which are arranged in such a way that two sensor housings can be clicked into place together as illustrated in Figures 3 and 4. The cables are attached to the associated measuring system 9 by means of cables 13 connected to the connection elements 14.

Figure 6 illustrates that it is optionally possible to arrange one single carrier 10 comprising a measuring system at the location of a nozzle 5, or two (or more) carriers coupled to one another, each comprising its own measuring system. Figure 6 also shows that the side of the sensor housing 25 oriented towards the nozzle 5 has smaller dimensions than the nozzle 5, so that the air flow can be supplied or discharged along two sides of the sensor housing 25 facing away from one another. Preferably, in the case of two or more carriers 10 coupled to one another, the total width dimension is smaller than that of the nozzle, so that the air flow can be supplied or discharged along free sides of the coupled carriers.

It is not necessary to arrange a carrier 10 at each nozzle 5. It is also not necessary to attach each nozzle 5 to a duct 3. In such a case, the relevant nozzle 5 can be closed off by means of a cap 34 (see Figure 5).

List of reference numerals 1. House 33. Regulating system 2. Room 34. Cap 3. Duct 4. Valve 5. Nozzle 6. Central housing 7. Active ventilator 8. Discharge 9. Measuring system 10. Carrier 11. Receiving space 12. Side wall 13. Cable 14. Connection element 15. Base part 16. Edge of side wall 17. Cover 18. Carrying edge 19. Carrying wall 20. Hook, supporting element 21. Motor 22. Sensor housing half 23. Sensor housing half 24. Outlet 25. Sensor housing 26. Male fastening means 27. Female fastening means 28. Stop 29. Mouth of guide 30. Intermediate wall 31. Recess 32. Opening

Claims

Claims 1. Ventilation system, comprising a central housing (6) having at least one nozzle (5), an active ventilator (7) in the housing and a flow-regulating means for regulating an air flow through the nozzle, which flow-regulating means comprises at least one measuring system (9) for measuring a property of the air, wherein, inside the central housing (6), a carrier (10) is connected to at least one nozzle (5), said carrier (10) comprising at least the measuring system (9), which housing (6) is provided with a receiving space (11) positioned in the path of the air flow for the carrier (10), in which receiving space the carrier can be accommodated or, respectively, from which receiving space the carrier can be removed, by displacement transversely with respect to said path of the air flow characterized in that the receiving space (11) is delimited by a carrying wall (16, 19), such as having at least one carrying edge (18), and in that the carrier (10) is provided with a supporting element which is supported with respect to the carrying wall (16, 19), such as a hook (20) which is hooked over the carrying edge (18) of the carrying wall (16, 19).
2. Ventilation system according to Claim 1, wherein the carrier (10) is located at the outlet of the nozzle (5) in the central housing (6) at a distance from the free end of the nozzle.
3. Ventilation system according to one of the preceding claims, wherein the flow-regulating means is provided with means for regulating a regulating system (33) for the air flow on the basis of a property of the air measured by the measuring system (9). 25
4. Ventilation system according to one of the preceding claims, wherein the central housing (6) is provided with a continuous peripheral wall (12) with peripheral edges (16) facing away from one another, between which the at least one nozzle (5) is located, and the carrying edge (18) of the carrying wall (19) is parallel to one of the peripheral edges (16).
5. Ventilation system according to one of the preceding claims, wherein the central housing (6) is provided with a continuous peripheral wall (12) with peripheral edges (16) facing away from one another, between which the at least one nozzle (5) is located, and the carrying edge is formed by one of the peripheral edges (16).
6. Ventilation system according to Claim 4 or 5, wherein the central housing is provided with an intermediate wall (30) at a distance between the two peripheral edges and oriented transversely with respect to the peripheral wall (12), said intermediate wall (30) containing at least one mouth (29) in which the receiving space (11) and the carrier (10) are accommodated.
7. Ventilation system according to one of the preceding claims, wherein the central housing (6) is provided with a base (15) on one of the peripheral edges (16) of the peripheral wall (12).
8. Ventilation system according to one of the preceding claims, wherein the central housing (6) is provided with a cover (17) on one of the peripheral edges (16) of the peripheral wall (12), which cover covers the interior space of the central housing.
9. Ventilation system according to Claims 6 and 8 or 7 and 8, wherein the mouth (29) of a receiving space (11) faces the peripheral edge (16) on which the cover (17) is located, in such a way that the cover covers both the receiving space (11) and a carrier (10) optionally accommodated therein.
10. Ventilation system according to one of the preceding claims, wherein the measuring system comprises a sensor unit for measuring a property of the air, such as the CO2 content, the air humidity or the like, said sensor unit emitting a signal which is a measurement of said property and being connected to the regulating system.
11. Ventilation system according to Claim 10, wherein the sensor unit comprises a sensor having integrated electronics for emitting a measurement signal, such as a sensor integrated on a printed circuit board.12 Ventilation system according to one of the preceding claims, wherein the carrier (10) is provided with a stop (28) at a distance from the hook (20), and the carrying wall (16, 19) is provided with a recess (31) at a distance from the carrying edge (18) in such a way that, when the hook is resting against the carrying edge, the stop is located in the recess in order to prevent the carrier from becoming detached from the carrying wall.13. Ventilation system according to one of the preceding claims, wherein the carrier (10) comprises a sensor housing (25) in which a sensor, preferably an integrated circuit having a sensor, is accommodated.14. Ventilation system according to Claim 13, wherein the sensor housing (25) has coupling means (26, 27) for coupling a further carrier having a sensor housing.15. Ventilation system according to one of the preceding claims, wherein a plurality of nozzles (5) are provided, each with a respective receiving space (11) for accommodating the carrier (10).16. Ventilation system according to one of the preceding claims, wherein the ventilator (7) is configured to suck in air via at least one nozzle (5) and the central housing (6) comprises an outlet (24) for discharging the air which is sucked in via the at least one nozzle, and/or wherein the ventilator is configured to emit air via at least one nozzle and the housing comprises an input for supplying the air which is emitted via the at least one nozzle.17. Carrier (10) for a ventilation system according to one of the preceding claims, comprising a sensor housing (25), a supporting element, such as a hook (20), connected to the sensor housing and at least one measuring system (9) for measuring a property of air.18. Carrier according to Claim 17, wherein the supporting element and the sensor housing are oriented in such a way with respect to one another that the carrier has a T-shaped plan view.19. Carrier (10) according to Claim 17 or 18, wherein a stop (31) is located at a distance from the hook (20) and on the open side of the hook.20. Carrier (10) according to any of Claims 17-19, wherein coupling means (26, 27) are provided for coupling a further carrier.21. Combination of two carriers (10) according to Claim 20, wherein the carriers are provided with identical coupling means (26, 27).22. Building, comprising at least one room, a ventilation system according to one of Claims 1-16, comprising a central housing (6) having at least one nozzle (5), an active ventilator (7) in the housing and a flow-regulating means for regulating an air flow through the nozzle, which flow-regulating means comprises at least one measuring system (9) for measuring a property of the air, wherein, inside the central housing (6), a carrier (10) is connected to at least one nozzle (5), said carrier (10) comprising at least the measuring system (9), which housing (6) is provided with a receiving space (11) positioned in the path of the air flow for the carrier (10), in which receiving space the carrier can be accommodated or, respectively, from which receiving space the carrier can be removed, by displacement transversely with respect to said path of the air flow, wherein the receiving space (11) is delimited by a carrying wall (16, 19), such as having at least one carrying edge (18), and in that the carrier (10) is provided with a supporting element which is supported with respect to the carrying wall (16, 19), such as a hook (20) which is hooked over the carrying edge (18) of the carrying wall (16, 19), and ducts (3, 3', ...) which each extend between the at least one room and a nozzle (5) of the housing.23. Building according to Claim 22, wherein the flow-regulating means comprises a regulating system (33) for regulating the air flow on the basis of a property of the air measured by the measuring system (9).24. Building according to Claim 23, wherein the regulating system (33), such as a regulating flap, is located in a duct (3, 3'...) and/or in a valve (4, 4', .)